Choosing the right 1/4-20 insert nut can improve strength, repair durability, and simplify assembly for furniture, crafts, and hobby projects. The following selections cover wood, plastic, and mixed-material applications, offering a range of materials, installation methods, and thread-quality options. The list prioritizes reliability, availability, and ease of use to help you pick inserts that fit most standard 1/4-20 hardware needs.
| Product | Brand | Type | Material | Qty |
|---|---|---|---|---|
| 40PCS 1/4-20 Threaded Inserts for Wood | AGBOLO | Wood inserts | Carbon steel | 40 pcs |
| ruthex 1/4″ Threaded Inserts | ruthex | Heat-set inserts | Brass | 20 pcs |
| PGMJ 80 Pcs 1/4″-20 Threaded Inserts for Wood | PGMJ | Wood inserts | Carbon steel | 80 pcs |
| MewuDecor 1/4″-20 Threaded Inserts for Wood | MewuDecor | Wood inserts | Carbon steel | 40 pcs |
| 50 PCS 1/4-20 x 10mm Threaded Inserts for Wood | kvohlum | Wood inserts | Carbon steel | 50 pcs |
40PCS 1/4-20 Threaded Inserts for Wood (AGBOLO)

The AGBOLO set offers a large quantity of 40 inserts designed for wood applications, suitable for furniture, wooden models, and artistic builds. They install with a simple drilling step and are driven in with the included hex key. The external threads are optimized to cut into both soft and hardwoods, providing a secure, durable threaded connection for ongoing use in varied projects.
ruthex 1/4″ Threaded Inserts (20 Pcs)

Ruthex provides heat-set brass threaded inserts, ideal for plastic parts and some 3D-printed components. They are embedded via heat or ultrasound, offering a stable hold with knurled edges that resist loosening. Brass ensures good corrosion resistance and thermal conduction, making them suitable for long-term use in mixed-material assemblies and hobby projects that require reliable threaded connections in non-wood components.
PGMJ 80 Pcs 1/4″-20 Threaded Inserts for Wood

PGMJ’s kit provides a high-count assortment of 1/4″-20 threaded inserts for wood furniture and crafts. Each insert is 20 mm long and ships with a white steel twist drill and hex spanner for efficient installation. Made from high-hardness carbon steel, these inserts are designed to withstand repeated assembly and disassembly in wood projects, making them a versatile option for builders and hobbyists who value range and reliability.
MewuDecor 1/4″-20 Threaded Inserts for Wood

MewuDecor offers 40 pieces of carbon steel threaded inserts with zinc plating for enhanced wear resistance and corrosion protection. Installation is straightforward: drill a properly sized hole and drive the insert in with the supplied hex key or compatible tools. These inserts suit furniture manufacturing, wood product fabrication, and crafts, providing solid connections across a variety of wood species and project scales.
50 PCS 1/4-20 x 10mm Threaded Inserts for Wood

This set from kvohlum provides 50 inserts at 10 mm length with a 1/4″-20 internal thread. The zinc-plated carbon steel construction offers good hardness, wear resistance, and corrosion resistance in challenging environments. The included hex spanner simplifies installation, making it a practical option for mid-sized furniture builds, repair work, and wood craft projects that demand consistent thread quality.
50Pcs Nylon Insert Nylon Lock Nuts (Fullerkreg)

These nylon insert lock nuts provide a different approach to secure threaded connections. While not traditional metal threaded inserts, nylon insert lock nuts with 1/4″-20 threads offer vibration resistance and anti-loosening performance for assemblies where a removable, reusable nut is preferred. Made from 18-8 stainless steel (A2-70) with a nylon insert, they are suitable for metal-to-metal or mixed-material assemblies where frequent disassembly is anticipated.
Vifmy 88Pcs 1/4″-20 Rivet Nuts

Vifmy offers 88 rivet nuts in 1/4″-20, crafted from 304 stainless steel for corrosion resistance and durability. These flat-head rivet nuts are suitable for metal plates and other thin-walled assemblies, expanding the use of 1/4″-20 threads beyond wood into metalwork and appliance fabrication. They provide a lightweight fastening option with strong tensile performance for serviceable, semi-permanent connections.
Vifmy 110 Pack Nylon Insert Lock Nuts

This extensive Vifmy pack expands the nylon insert lock nut offerings to 110 pieces, all in 1/4″-20 imperial sizing. The combination of 304 stainless steel with a nylon insert provides reliable anti-loosening performance in vibration-heavy environments, making these suitable for mechanical assemblies, cabinetry that experiences movement, and craft projects requiring secure, repeatable fastening.
Buying Guide: Key Purchase Considerations
- Material Type: Wood inserts are typically carbon steel or stainless steel for strength and corrosion resistance. Brass heat-set inserts are ideal for plastics, while nylon insert lock nuts offer anti-loosening properties without metal-to-metal galling in certain assemblies.
- Installation Method: Determine whether you need self-tapping, heat-set, or press-fit inserts. Wood inserts often require a correctly sized pilot hole and a driving tool, while heat-set inserts use heat to melt into plastics for a tight grip.
- Thread Type and Size: Confirm that the internal thread is 1/4″-20 to match your bolts or fasteners. Some kits distinguish between metric and imperial threads, so separate buys may be needed for non-standard projects.
- Length and Outer Diameter: Longer inserts (e.g., 20 mm) provide deeper engagement but require larger pilot holes. Ensure the hole size matches the insert specifications to avoid loosening or splitting wood.
- Coatings and Corrosion Resistance: Zinc plating improves wear resistance in wood environments, while stainless steel offers superior corrosion resistance for humid or outdoor use. Consider your project conditions when choosing.
- Quantity and Value: Kits vary from 20 to over 100 pieces. For ongoing projects, higher-count sets reduce reordering frequency and often provide better per-unit value.
- Compatibility with Materials: Wood inserts perform best in wood; heat-set brass inserts suit plastics; rivet nuts extend to metal surfaces. If your project uses multiple materials, plan for a mixed toolkit or separate batches.
- Tools Required: Check whether a hex key, drill bit, or heat tool is included in the kit. Having the correct driver and drill bit on hand minimizes installation time and ensures a clean, durable fit.
In evaluating options, consider the dominant material of your project, the anticipated load and vibration, and whether you need long-term reuse or easy disassembly. For woodworking and furniture fabrication, wood-threaded inserts with appropriate pilot holes provide reliable, repeatable connections that resist pull-out. For plastic or mixed-material projects, heat-set brass inserts can deliver strong, permanent bonds. Finally, lock nuts or nylon inserts offer anti-loosening benefits in dynamic assemblies where bolts may loosen over time.